The force said that among the 11 injured, two were in serious condition. The police also confirmed that the 58-year-old driver of the KMB bus had been arrested on suspicion of dangerous driving causing death.

The accident happened at about 11 pm at the junction of Tsing Sha Highway and Tai Po Road, where police believe the driver had made a sharp left turn after finding himself in the wrong lane, making contact with a road divider before the bus flipped onto its side.

Police said a 37-year-old man was declared dead at the scene after suffering severe head injuries.

The 11 injured, including the driver, a man, and nine women aged between 19 to 70, suffered from scratches, lacerations, and sprains. They were brought to Queen Elizabeth Hospital and Prince of Wales Hospital for medical treatment.

The driver was currently detained, and the force said their lines of inquiry would include the driver's mental state, bus speed, and traffic conditions. They have seized the bus's camera system and black box for investigation.

It was understood that at least 11 people were trapped when first responders arrived. The front window of the bus was shattered, with glass debris scattered across the road.

Some of the injured were taken away on stretchers while other passengers received treatment on the roadside.

At least six ambulances were on the scene, along with firefighters.

KMB said the driver had 18 years of experience and had worked on the same route since 2015. It said the bus involved was six years old and had passed an inspection earlier this month.